Actually, that's an error in ALL of the 1967 manuals (including passenger and Corvette); that gasket was never used in production from 1956-up and isn't needed, but it shows in the 1967 Assembly Manuals.

Actually, that's an error in ALL of the 1967 manuals (including passenger and Corvette); that gasket was never used in production from 1956-up and isn't needed, but it shows in the 1967 Assembly Manuals.